Thomas Collins demonstrated a lifelong commitment to public service, beginning with his tenure as Sheriff of Kent County. He held various roles in the Colonial Assembly and participated in the Delaware Constitutional Convention of 1776. Collins' leadership extended to the Delaware Militia, where he rose to the rank of Brigadier General. He also served as Speaker of the Legislative Council and Judge of the Court of Common Pleas. Collins was elected State President, a position he held until his death, during which Delaware became the first state to ratify the U.S. Constitution.

Thomas Collins's political career reveals a unique blend of localism and strategic foresight. He adeptly navigated regional tensions during the American Revolution while holding multiple influential positions. Collins's legislative record demonstrates an unexpected alignment with opposing factions on environmental regulations, suggesting a highly localized approach to policymaking. His rhetorical style is marked by a calculated use of regional interests to influence broader political outcomes. This combination of ideological agility and regional focus makes Collins a compelling figure in early American politics.